Drilling Methods
Mostrando 1-12 de 37 artigos, teses e dissertações.
-
1. Dynamic anisotropy and non-linear geostatistics supporting short term modelling of structurally complex gold mineralization
Abstract Non-linear geostatistical methods are known to deal appropriately with the geological and geometrical complexity of gold deposits. This article reports the results related to an investigation to improve the gold content estimate based on restricted ore modeling to honor the structural aspects that control the mineralization. The grade domains are de
REM, Int. Eng. J.. Publicado em: 2021-06
-
2. Peculiarities of drilling and blasting in underground small-scale mines
Abstract Artisanal and Small-scale Mining (ASM) is a prominent activity in the extractive industry: considering only gold, it produces about 20% of the world market supply. Despite this fact, ASM is generally associated with the negative aspects of its environ mental impact, and operational research is generally neglected. This article empha sizes the peculi
REM, Int. Eng. J.. Publicado em: 2020-09
-
3. Treatment of Anterior Cruciate Ligament Injuries in Professional Soccer Players by Orthopedic Surgeons
Resumo Objetivo Descrever o tratamento realizado por especialistas das lesões do ligamento cruzado anterior (LCA) em jogadores profissionais de futebol. Métodos Estudo transversal, no qual ortopedistas vinculados a clubes participantes do Campeonato Brasileiro de Futebol responderam a um questionário sobre o tratamento das lesões do LCA em jogadores pr
Rev. bras. ortop.. Publicado em: 13/12/2019
-
4. Otobone®: Three-dimensional printed Temporal Bone Biomodel for Simulation of Surgical Procedures
Abstract Introduction The anatomy of the temporal bone is complex due to the large number of structures and functions grouped in this small bone space, which do not exist in any other region in the human body. With the difficulty of obtaining anatomical parts and the increasing number of ear, nose and throat (ENT) doctors, there was a need to create altern
Int. Arch. Otorhinolaryngol.. Publicado em: 25/11/2019
-
5. Comparing the Clinical Success Rate of Self-Drilling and Self-Tapping Mini-screws in the Retraction of Maxillary Anterior Teeth
Abstract Objective: To compare the success of self-drilling and self-tapping methods in the retraction of maxillary anterior teeth. Material and Methods: The study was conducted in 57 subjects with Cl II malocclusion who needed to be treated with extraction of four maxillary teeth. The self-tapping method was used on the left side and the self-drilling me
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 10/10/2019
-
6. Applied anatomy of round window and adjacent structures of tympanum related to cochlear implantation
Resumo Introdução: Vários aspectos da anatomia da janela redonda e da anatomia da caixa timpânica posterior são relevantes, devido a suas implicações no desenho dos eletrodos para o implante coclear e na visibilidade da janela redonda através do recesso facial. Informações prévias sobre possíveis variações anatômicas da janela redonda e suas
Braz. j. otorhinolaryngol.. Publicado em: 29/08/2019
-
7. Functional Evaluation after Medial Patellofemoral Ligament Reconstruction in Athletes
Resumo Objetivo Avaliar os resultados clínicos e funcionais da reconstrução anatômica do ligamento patelofemoral medial com tendões flexores em atletas. Métodos Estudo tipo série de casos, prospectivo, que analisou a reconstrução do ligamento patelofemoralmedial em32 pacientes (34 joelhos). A avaliação funcional foi feita pelos escores Lysholm
Rev. bras. ortop.. Publicado em: 03/06/2019
-
8. CURRENT PANORAMA OF ANTERIOR CRUCIATE LIGAMENT RECONSTRUCTION SURGERY IN BRAZIL
RESUMO Objetivo: O presente estudo tem como objetivo estabelecer o panorama atual da cirurgia de reconstrução do ligamento cruzado anterior no Brasil. Métodos: Nas últimas três edições de um evento nacional de cirurgia do joelho, realizou-se uma pesquisa que consistiu em um questionário de 24 itens incluindo dados demográficos do cirurgião, técn
Acta ortop. bras.. Publicado em: 30/05/2019
-
9. Improving short-term grade block models: alternative for correcting soft data
Abstract Short-term mining planning typically relies on samples obtained from channels or less-accurate sampling methods. The results may include larger sampling errors than those derived from diamond drill hole core samples. The aim of this paper is to evaluate the impact of the sampling error on grade estimation and propose a method of correcting the impre
REM, Int. Eng. J.. Publicado em: 2018-03
-
10. Methods of Hearing Preservation during Cochlear Implantation
Abstract Introduction Recent advances in surgical techniques and electrode design have made residual hearing preservation during cochlear implantation (CI) possible, achievable, and desirable. Objectives The objective of this study was to review the literature regarding methods used for hearing preservation during CI surgery. Data Synthesis We performe
Int. Arch. Otorhinolaryngol.. Publicado em: 2017-09
-
11. Residual Stress Evaluation by X-Ray Diffraction and Hole-Drilling in an API 5L X70 Steel Pipe Bent by Hot Induction
The API 5L X70 steel is used in high-pressure gas transmission pipelines. Because of this, knowledge of presence of residual stress and their magnitude is important to assess the material integrity in service. For the pipeline manufacturing, tubes need to be curved which is often made using the hot induction bending process. This process can introduce differ
Mat. Res.. Publicado em: 09/09/2016
-
12. Design of conformal cooling for plastic injection moulding by heat transfer simulation
The cooling channels of a mold for plastic injection have to be as close as possible to the part geometry in order to ensure fast and homogeneous cooling. However, conventional methods to manufacture cooling channels (drilling) can only produce linear holes. Selective laser melting (SLM) is an additive manufacturing technique capable to manufacture complex c
Polímeros. Publicado em: 2015-12